In the electrochemical cell:
the emf of this Daniel cell is E1. When the concentration of ZnSO4 is changed to 1.0 M and that of CuSO4 is changed to 0.01 M, the emf changes to E2. From the following, which one is the relationship between E1 and E2 ?
(Given, \(\frac{RT}{F}\) = 0.059)
1.
2.
3.
4.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe pressure of H2 required to make the potential of H2 - electrode zero in pure water at 298 K is
1. 10-12 atm
2. 10-10 atm
3. 10-4 atm
4. 10-14 atm
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe equilibrium constant of the reaction :
Cu(s) + 2Ag+ (aq) → Cu2+(aq)+2Ag(s);
E0=0.46 V at 298 K is :
1.
2.
3.
4.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyA hypothetical electrochemical cell is shown below.
A|A+(x M) || B+(y M)|B
The Emf measured is +0.20 V. The cell reaction is:
1. A+ + B → A + B+
2. A+ + e- → A ; B+ + e- → B
3. The cell reaction cannot be predicted.
4. A + B+ → A+ + B
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology